What is an EdCamp? According to edutopia, Edcamps are: Free to all participants; A free-flow of ideas and information about education, education technology and best practices for teachers; An unconference model of sessions throughout the day for spontaneous topics, chats and activities; The ability of being a presenter is at your discretion (and courage)
Tanning bed bulbs and lamps should be replaced when they have been used to 80 percent of their expected life cycle, and typically hit this mark about one year after they have been installed. Low-pressure lamps have a life cycle of 300 to 1,700 hours, while high-pressure bulbs last 300 to 9,500 hours.
When to Buy a Mattress. Finding a mattress that suits your particular preferences is vital for getting a good nightâs sleep. How often you should replace your mattress depends on many different things, such as the original quality, but you should typically replace your mattress every seven years or so. Another clue is to look at the warrantyâonce itâs up, it might be time for a newer model.